1296825 has 12 divisors (see below), whose sum is σ = 2144208. Its totient is φ = 691600.

The previous prime is 1296817. The next prime is 1296829. The reversal of 1296825 is 5286921.

It is not a de Polignac number, because 1296825 - 2³ = 1296817 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1296829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8571 + ... + 8720.

It is an arithmetic number, because the mean of its divisors is an integer number (178684).

2^1296825 is an apocalyptic number.

1296825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1296825 is a deficient number, since it is larger than the sum of its proper divisors (847383).

1296825 is a wasteful number, since it uses less digits than its factorization.

1296825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17304 (or 17299 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 1296825 is about 1138.7822443294. The cubic root of 1296825 is about 109.0503652999.

The spelling of 1296825 in words is "one million, two hundred ninety-six thousand, eight hundred twenty-five".